Up in the main range of the San Gabriel Mountains, on the north slopes
of this rugged chain, are located a number of veins, on which
considerable work has been done. The veins are well defined, ranging
from 1 to 4 feet in width, striking northwest and southeast, and dipping
uniformly to the northeast at a high angle. All of these veins contain
gold, but all quickly run into sulphurets. All the mines are idle at
present, but something brighter is hoped for. The sulphurets are said to
contain sufficient gold to make chlorination profitable. If this is
actually the case there is an abundance of material to work upon.